p2125vps20 Renesas Electronics Corporation., p2125vps20 Datasheet - Page 268

• Manufacturer Part Number: p2125vps20
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Section 11 16-Bit Free-Running Timer (FRT)
11.5.4
The rising or falling edge can be selected for the input capture input timing by the IEDGA to
IEDGD bits in TCR. Figure 11.7 shows the usual input capture timing when the rising edge is
selected.
If ICRA to ICRD are read when the corresponding input capture signal arrives, the internal input
capture signal is delayed by one system clock (φ). Figure 11.8 shows the timing for this case.
Rev. 1.00 Sep. 21, 2006 Page 230 of 658
REJ09B0310-0100
Figure 11.8 Input Capture Input Signal Timing (When ICRA to ICRD is Read)
φ
Input capture
input pin
Input capture signal
φ
Input capture
input pin
Input capture signal
Input Capture Input Timing
Figure 11.7 Input Capture Input Signal Timing (Usual Case)
Read cycle of ICRA to ICRD
T 1
T 2